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Search of intersteller media and the evolution to planetary matters.

Research Project

Project/Area Number09440186
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Petrology/Mineralogy/Science of ore deposit
Research InstitutionTOKYO INSTITUTE OF TECHNOLOGY

Principal Investigator

YURIMOTO Hisayoshi  Graduate School of Science and Engineering Tokyo Institute of Technology, Associate Professor, 大学院・理工学研究科, 助教授 (80191485)

Co-Investigator(Kenkyū-buntansha) HIRATA Takafumi  Graduate School of Science and Engineering Tokyo Institute of Technology, Associ, 大学院・理工学研究科, 助教授 (10251612)
Project Period (FY) 1997 – 1998
Project Status Completed(Fiscal Year 1998)
Budget Amount *help
¥10,800,000 (Direct Cost : ¥10,800,000)
Fiscal Year 1998 : ¥3,200,000 (Direct Cost : ¥3,200,000)
Fiscal Year 1997 : ¥7,600,000 (Direct Cost : ¥7,600,000)
KeywordsMeteorite / Oxygen / Secondary ion mass spectrometry / interstellar medium / isotope microscope / solar system / isotope / 惑星系 / 珪素 / マグネシウム / 2次イオン質量分析法
Research Abstract

Interstellar media in primitive meteorites are only clue to clarify presolar history. The difference between interstellar media and solar matters is only isotope ratio of elements. We have made in-situ measurements of isotope ratios, textures, shapes and crystal structures for individual fine particles in primitive meteorites. The goal of in this study is construction of new scenario for material evolution from interstellar media to planetary matters.
A novel micro-scale analysis for oxygen isotope ratios has been developed by secondary ion mass spectrometry. A calcium-aluminum-rich inclusion (CAI) from the Allende meteorite was analyzed and found to contain melilite crystals with extreme oxygen-isotope compositions (-5 percent oxygen-16 enrichment relative to terrestrial oxygen-16). The oxygen isotopic variation measured among the minerals (melilite, spinel, and fassaite) indicates that crystallization of the CAI started from oxygen-16-rich materials that were probably liquid droplets in the solar nebula, and oxygen isotope exchange with the surrounding oxygen-16-poor nebular gas progressed through the crystallization of the CAI.Additional oxygen isotope exchange also occurred during subsequent reheating events in the solar nebula. The 160-rich dust and 160-poor gas continued together in the solar nebula from the CAI-forming period until the chondrule-forming period.
A possible scenario for new evidence would be an active protosun with bipolar out-flow. Interstellar media near the protosun has been processed thermally and then launched into outer solar system. Therefore, composition of solar nebulae distributed heterogeneously along radial direction, The characteristics of composition and isotope ratio of each planet have been achieved in the first million years of solar system evolution.

Report

(3results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report

Research Products

(23results)

All Other

All Publications

  • [Publications] Yurimoto, H., Matsumoto, K., Kim, K. Kitajima, H., Kosaka, K. and Hirata, H.: "Development of solid-state two-dimensional ion imaging device and new computer control system for SIMS." Secondary Ion Mass Spectrometry SIMS X. 987-990 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kurosawa, M., Yurimoto, H. and Sueno, S.: "Patterns in the hydrogen and trace element compositions of mantle olivines." Phys.Chem.Min.24. 385-395 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kita, N. T., Togashi, S., Morishita, Y., Terashima, S. and Yurimoto, H.: "Search for 60Ni excesses in MET-78008 ureilite : an ion microprobe study." Antarct. Meteorite Res.11. 103-121 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 圦本尚義、倉本 圭: "隕石を作った初期太陽系プロセス : 原始惑星系の物質大循環" 科学. 68. 637-650 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Taura, H., Yurimoto, H., Kurita, K. and Sueno, S.: "Pressure dependence on partition coefficients for trace elements between olivine and the coexisting melts." Phys. Chem. Mineral.25. 469-484 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yurimoto, H., Ito, M. and Nagasawa, H.: "Oxygen isotope exchange between refractory inclusion in Allende and solar nebula gas." Science.282. 1874-1877 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 圦本尚義: "質量分析と太陽系の進化" ぶんせき. 291. 219-228 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yurimoto, H., Matsumoto, K., Kim, K.Kitajima, H., Kosaka, K.and Hirata, H.: "Development of solid-state two-dimensional ion imaging device and new computer control system for SIMS." Secondary Ion Mass Spectrometry SIMS X,Wiley. 987-990 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kurosawa, M., Yurimoto, H.and Sueno, S.: "Patterns in the hydrogen and trace element compositions of mantle olivines." Phys.Chem.Min.24. 385-395 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kita, N.T., Togashi, S., Morishita, Y., Terashima, S.and Yurimoto, H.: "Search for 60Ni excesses in MET-78008 ureilite : an ion microprobe study." Antarct.meteorite Res.11. 103-121 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Taura, H., Yurimoto, H., Kurita, K.and Sueno, S.: "Pressure dependence on partition coefficients for trace elements between olivine and the coexisting melts." Phys.Chem.Mineral. 25. 469-484 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yurimoto, H., Ito, M.and Nagasawa, H.: "Oxygen isotope exchange between refractory inclusion in Allende and solar nebula gas." Science. 282. 1874-1877 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kita,N.T.,Togashi,S.,Morishita,Y.,Terashima,S.and Yurimoto,H.: "Search for 60Ni excesses in MET-78008 ureilite: an ion microprobe study." Antarct.Meteorite Res.11. 103-121 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 圦本尚義、倉本 圭: "隕石を作った初期太陽系プロセス:原始惑星系の物質大循環" 科学. 68. 637-650 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Ito,M.、Yurimoto,H.and Nagasawa,H.: "Oxygen-isotopic microanalysis of calcium-aluminum-rich inclusions in the Allende meteorite:intermineral and intramineral distribution" Meteorit.Planet.Sci.33. A74-A75 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Maruyama,S.,Yurimoto,H.and Sueno,S.: "Spinel-bearing chondrules in the Allende meteorite." Meteorit.Planet.Sci.33. A98 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yurimoto,H.,Ito,M.and Nagasawa,H.: "Oxygen isotope exchange between refractory inclusion in Allende and solar nebula gas." Science. 282. 1874-1877 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yurimoto,H., Matsumoto,K., Kim,K, Kitajima,H., Kosaka,K. and Hrata,H.: "Development of solid-state two-dimensional ion imaging device and new computer control system for SIMS. in Secondary Ion Mass Spectrometry SIMS X" Wiley. 987-990 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Ito, M., Yurimoto,H., Morioka,M. and Nagawsawa,H.: "REE diffusivities in melilite : A preliminary study by SIMS-depth profile method" Lunar Planet.Sci.28. 627-628 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yurimoto,H. and Kuramoto,K.: "Si fractionation of chondrite parent bodies by bipolar outflow." Lunar Planet.Sci.28. 1615-1616 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 圦本尚義: "同位体顕微鏡-全地球ダイナミクスを診る次世代分析装置-" 科学. 67. 560-566 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Kurosawa,M., Yurimoto,H. and Sueno,S.: "Patterns in the hydrogen and trace element compositions of mantle olivines." Phys.Chem.Min.24. 385-395 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Hirata and R.W.Nebitt: "Distribution of platinum group elements and rhenium between metallic phases of iron meteorites." Earth and Planetary Science Letters. Vol..147. 11-24 (1997)

    • Related Report
      1997 Annual Research Report

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Published : 1997-04-01   Modified : 2016-04-21  

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